Live Weather & Forecast
Weather in San Carlos
California, United States · Real-time conditions & 3-day outlook
12°C
Feels like 9°C
54°F / Feels 49°F
Overcast
San Carlos, California
🌙 Nighttime
Updated: 2026-04-12 05:00
Humidity
88%
Wind
30.2 km/h SW
Wind Gust
42.7 km/h
Pressure
1010 mb
Visibility
14 km
UV Index
0
(Low)
Precipitation
0.02 mm
Cloud Cover
100%
Dew Point
6.8°C
Wind Degree
220°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
145.9 μg/m³
NO₂
3.1 μg/m³
O₃
92 μg/m³
SO₂
1.7 μg/m³
PM 2.5
6.9 μg/m³
PM 10
10.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for San Carlos, California
12 AM
10°
Clear
1 AM
10°
Partly Cloudy
2 AM
10°
Patchy rain nearby
3 AM
10°
Patchy light rain
4 AM
10°
Patchy rain nearby
5 AM
12°
Overcast
6 AM
10°
Patchy rain nearby
7 AM
10°
Sunny
8 AM
11°
Overcast
9 AM
12°
Patchy rain nearby
10 AM
13°
Moderate rain at times
11 AM
13°
Overcast
12 PM
14°
Patchy rain nearby
1 PM
14°
Patchy rain nearby
2 PM
14°
Partly Cloudy
3 PM
14°
Cloudy
4 PM
14°
Cloudy
5 PM
14°
Light rain shower
6 PM
14°
Cloudy
7 PM
12°
Cloudy
8 PM
12°
Overcast
9 PM
12°
Cloudy
10 PM
11°
Partly Cloudy
11 PM
11°
Patchy rain nearby
3-Day Forecast
Daily overview for San Carlos, California
Today
Moderate rain
15°
/
9°
🌧️ 89% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 34.6 km/h
🌧️ Total precip: 9.61 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:38 AM
🌇 Sunset: 07:42 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Cloudy
16°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:36 AM
🌇 Sunset: 07:43 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
15°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 17.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:35 AM
🌇 Sunset: 07:44 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit San Carlos
Plan your trip to San Carlos, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in San Carlos?
Current conditions in San Carlos: Overcast, temperature 12°C, humidity 88%.
What is the best time to visit San Carlos?
The best time to visit San Carlos is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in San Carlos?
San Carlos is located at approximately 37.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in San Carlos?
The wettest period in San Carlos is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to San Carlos?
For visits to San Carlos during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is San Carlos in?
San Carlos is located in United States, in the state of California.
What are the public holidays in San Carlos in 2026?
View the 2026 public holidays for San Carlos on our Holidays page.
What are the GPS coordinates used for the weather forecast in San Carlos?
The weather forecast for San Carlos uses coordinates 37.5049, -122.2618.